package total;

import java.util.Scanner;

public class Ques1630 {
	
	public void go(){
		Scanner scan = new Scanner(System.in);
		int t,n,sum,max1;
		int[] arr;
		while(scan.hasNext()){
			t = scan.nextInt();
			while(t -- > 0){
				sum = 0;
				max1 = 0;
				n = scan.nextInt();
				arr = new int[n];
				for (int i = 0; i < n; i++) {
					arr[i] = scan.nextInt();
					sum += arr[i];
					if(arr[i] > max1){
						max1 = arr[i];
					}
				}
				if(sum % 2 == 0 && sum >= 2 * max1){
					System.out.println("yes");
				}else{
					System.out.println("no");
				}
			}
		}
	}
	
	public static void main(String[] args) {
		new Ques1630().go();
	}
}
